*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    max-width:700px;
    margin:auto;
    background: url(img/111.jpg);
}

h1{
    margin:50px 0;
    border-bottom:1px solid #000;
    text-align: center;
}

textarea{
    width:100%;
    padding: 10px;
    margin-bottom: 30px;
}

input{
    width: 100%;
    padding:10px;
    margin-bottom: 10px;
}

a{
    display: inline-block;
    padding:10px 0;
    margin-right:20px;
}

.footer{
    text-align: center;
    margin:50px 0;
}

img{
    width: 100px;
    height: 100px;
}
 
.lou{
    font-size:20px;
}

.neirong{
    color: gainsboro;
    font-weight: bold;
}
.ren{
    color:blueviolet;
    font-weight: bold;
}
.time{
    color: yellowgreen;
    font-weight: bold;
}